Found this on the F-Type Forum:

Jaguar Land Rover North America stated that they've extended the O2 sensor warranty on 2014-2017 F-Types to 15 years or 150K miles for 3.0L models and 10 years / 120K miles for 5.0L models. Furthermore, they will reimburse people who paid to replace them in the past. Not sure if this applies to only the US or the US and Canada:

 

Well read the thread as many including myself have turned in paperwork with no response from Jaguar. So not sure how many have been reimbursed or if anyone has gotten this covered?

Now the good thing is changing the O2 sensor is dead easy and took maybe 30 minutes on my 2014 XJR. Plus the sensor was only about $60 so I am not out much money either. It was a nice gesture from Jaguar at any rate.
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Did you submit the paperwork to the dealer where the work was done? Or are you trying to get reimbursed for the DIY work? I believe reimbursement is only for those who paid a dealer to fix the O2 sensor.

 

That part was unclear as they did not say it was only covered if the dealer replaced it? I submitted the paperwork to JLR North America at the address in the letter.
Yes I replaced it myself before this letter was released.
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